Amazon.com: 4G VPN Router, Industrial Dual Sim 4G LTE WiFi Router 3G/4G Yeacomm YF325 Wireless Modem Router Unlocked with Sim Card Slot, External Antenna Cellular Modem in North/South America, NOT for Verizon :
Amazon.com: Wiflyer WG3526 4G LTE Router | AC1200Mbps Dual Band CAT4 Wireless Router with Metal Case and Detachable 6×5dBi Antennas| Gigabit Ethernet with TF Card Slot & USB3.0 Port & SIM Card
Industrial Versatile Cellular Router & 4G DTU supports RS485 & DI & DO | HINO
Hdrm200 Series 3G/4G VPN Dual-SIM WiFi Router with SIM Card Slot - China WiFi Router, Industrial Router | Made-in-China.com
LINOVISION Industrial 5G Cellular Router with Dual 5G SIM Cards and RS232/485 IoT Integration,Gigabit Ethernet, WiFi 5G/4G and GPS | LINOVISION US Store
Amazon.com: 4G Outdoor CPE WiFi Router, Yeacomm 3G 4G IP66 LTE CPE Kit | LTE Unit with Sim Card Slot + Indoor AP WiFi Hotspot, 150Mbps CAT4 Mobile WiFi Router,Not for Verizon :